Clsi M22a3 Pdf Jun 2026

Campylobacter agar, selective media for Neisseria gonorrhoeae (e.g., Thayer-Martin medium), and certain biochemical identification media.

Anaerobic media (e.g., Brucella blood agar) must be tested with anaerobes (e.g., Bacteroides fragilis ) and, as a negative control, an aerobe that should not grow (e.g., Pseudomonas aeruginosa ). Testing frequency—lot, shipment, or day—depends on risk assessment, but daily testing is common in high-complexity labs. clsi m22a3 pdf

The M22-A3 standard from CLSI classifies commercially prepared microbiological culture media into two distinct groups: selective media for Neisseria gonorrhoeae (e.g.

Even when utilizing exempt media, the laboratory cannot completely bypass quality checks. Under CLSI M22-A3, the user must: Bacteroides fragilis ) and

This section covers the technical details of inoculating QC media, including direct inoculation, standardized suspension, and preparation of suspension.